CVE-2022-48630

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-48630
In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ The commit referenced in the Fixes tag removed the 'break' from the else branch in qcom_rng_read(), causing an infinite loop whenever 'max' is not a multiple of WORD_SZ. This can be reproduced e.g. by running: kcapi-rng -b 67 >/dev/null There are many ways to fix this without adding back the 'break', but they all seem more awkward than simply adding it back, so do just that. Tested on a machine with Qualcomm Amberwing processor.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3 Patch
https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d Patch
https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c Patch
https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550 Patch
https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce Patch
https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae Patch
https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3 Patch
https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d Patch
https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c Patch
https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550 Patch
https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce Patch
https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc9:*:*:*:*:*:*
History

03 Feb 2025, 14:09

Type Values Removed Values Added
CWE CWE-835
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc9:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.18:rc3:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3 - () https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3 - Patch
References () https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d - () https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d - Patch
References () https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c - () https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c - Patch
References () https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550 - () https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550 - Patch
References () https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce - () https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce - Patch
References () https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae - () https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae - Patch

21 Nov 2024, 07:33

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: crypto: qcom-rng: corrige el bucle infinito en solicitudes que no sean múltiples de WORD_SZ. El commit a la que se hace referencia en la etiqueta Fixes eliminó la 'ruptura' de la rama else en qcom_rng_read(), lo que provocó una bucle infinito siempre que 'max' no sea un múltiplo de WORD_SZ. Esto se puede reproducir, por ejemplo, ejecutando: kcapi-rng -b 67 >/dev/null Hay muchas formas de solucionar este problema sin volver a agregar el 'descanso', pero todas parecen más incómodas que simplemente volver a agregarlo, así que hazlo. Probado en una máquina con procesador Qualcomm Amberwing.
References () https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3 - () https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3 -
References () https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d - () https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d -
References () https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c - () https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c -
References () https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550 - () https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550 -
References () https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce - () https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce -
References () https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae - () https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae -

05 Mar 2024, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-05 12:15

Updated : 2025-02-03 14:09

NVD link : CVE-2022-48630

Mitre link : CVE-2022-48630

CVE.ORG link : CVE-2022-48630

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')